<form action="index.php" method="post">
    <input type="hidden" name="act" value="news">
    <input type="hidden" name="op" value="add">
<table>
    <tr><td>
            新闻标题<input placeholder="新闻标题" type="text" name="news_title" required>
        </td></tr>
    <tr><td>内容：
            <textarea name="news_contents"></textarea>
        </td></tr>

    <tr><td><input type="submit" name="submit_news_add" value="添加"></td></tr>
</table>
</form>
<script>

</script>